ipc: use device_initcall

... since __initcall is now deprecated.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/ipc/util.c b/ipc/util.c
index e1b4c6d..2eb0d1e 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -128,7 +128,7 @@
 	register_ipcns_notifier(&init_ipc_ns);
 	return 0;
 }
-__initcall(ipc_init);
+device_initcall(ipc_init);
 
 /**
  * ipc_init_ids	- initialise ipc identifiers